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// Copyright 2016 The Bazel Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.testing.junit.runner;
import org.junit.internal.AssumptionViolatedException;
import org.junit.runner.Description;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;
/**
* A straightforward listener that prints to stdout/stderr whenever a test changes its state (e.g.
* started, finished, failed).
*/
class TestListener extends RunListener {
/**
* Called before any tests have been run. Prints to stdout the number of test cases found.
*
* @param description describes the tests to be run
*/
@Override
public void testRunStarted(Description description) throws Exception {
System.out.println("Found " + formatTestCaseCount(description.testCount()) + ".");
}
/**
* Called when all tests have finished. Prints to stdout if the tests were successful or not. If
* not, it also prints the number of failed test cases. Finally, it prints the number of
* ignored test cases.
*
* @param result the summary of the test run, including all the tests that failed
*/
@Override
public void testRunFinished(Result result) throws Exception {
if (result.wasSuccessful()) {
System.out.println("Successfully finished running "
+ formatTestCaseCount(result.getRunCount()) + " in " + result.getRunTime() + " ms.");
} else {
System.out.println("Finished running " + formatTestCaseCount(result.getRunCount())
+ " in " + result.getRunTime() + " ms.");
int failureCount = result.getFailureCount();
if (failureCount == 1) {
System.out.println("There was 1 failed test.");
} else {
System.out.println("There were " + failureCount + " failed tests.");
}
}
int ignoredCount = result.getIgnoreCount();
if (ignoredCount == 1) {
System.out.println(result.getIgnoreCount() + " test case was ignored.");
} else if (ignoredCount > 1) {
System.out.println(result.getIgnoreCount() + " test cases were ignored.");
}
}
/**
* Called when an atomic test is about to be started. Prints to stdout the name of the test that
* started with the corresponding information.
*
* @param description the description of the test that is about to be run
* (generally a class and method name)
*/
@Override
public void testStarted(Description description) throws Exception {
System.out.println("Test case started: " + description.getDisplayName());
}
/**
* Called when an atomic test fails. Prints to stderr the name of the test that failed
* (including its class) and the reason why, including the stack trace.
*
* @param failure describes the test that failed and the exception that was thrown
*/
@Override
public void testFailure(Failure failure) throws Exception {
System.err.println("Failure in " + failure.getTestHeader() + ": " + failure.getMessage()
+ "\n" + failure.getTrace());
}
/**
* Called when an atomic test flags that it assumes a condition that is false. Prints to stderr
* that a test case assumed false condition, including the corresponding message containing
* the context.
*
* @param failure describes the test that failed and the
* {@link AssumptionViolatedException} that was thrown
*/
@Override
public void testAssumptionFailure(Failure failure) {
System.err.println("Test case assumed false condition: " + failure.getMessage());
}
/**
* Called when a test will not be run, generally because a test method is annotated with
* Ignore. Prints to stderr that a test case was ignored, alongside with the test name.
**/
@Override
public void testIgnored(Description description) throws java.lang.Exception {
System.err.println("Test case " + description.getMethodName() + " ignored.");
}
private static String formatTestCaseCount(int count) {
if (count == 1) {
return "1 test case";
}
return count + " test cases";
}
}
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